eng Science and Education Publishing World Journal of Chemical Education 2375-1657 2018-12-18 6 6 230 238 10.12691/wjce-6-6-1 WJCE2018661 article Vitor Paulo Andrade da Silva vitorpauloasilva@gmail.com, ronaldo@ufc.br 1 Pablo Gordiano A. Barbosa 2 Thiago Coutinho Medeiros 2 Ronaldo Ferreira do Nascimento vitorpauloasilva@gmail.com, ronaldo@ufc.br 2 Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Fortaleza Instituto Federal de Educação, Ciência e Tecnologia do Ceará In this study is reported an interdisciplinary approach to teaching chemistry using case studies seeking to stimulate the students in the learning process as well as to develop their critical thinking. The focuses were in chemical multiple equilibrium from an environmental problem based on the quantitative assessment of the dissolution process of limestone sediment containing in a water body by the action of acid rain and increasing of the CO2 atmospheric concentration. The variables considered were pluviometric average, CO2, SO2 and NO2 levels in the atmosphere as well as their dissolution equilibria and CaCO3 sediment precipitation. This study is an important teaching tool that can be applied in undergraduate and postgraduate chemistry courses with emphasis in Analytical and Environmental Chemistry, engaging students in active discussion about issues and problems inherent to practical applications. http://pubs.sciepub.com/wjce/6/6/1/wjce-6-6-1.pdf environmental chemistry computer-based learning atmospheric chemistry computational chemistry acid-base chemical equilibrium